JP5569548B2 - Coaxial electrical connector and coaxial electrical connector device - Google Patents

Coaxial electrical connector and coaxial electrical connector device Download PDF

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JP5569548B2
JP5569548B2 JP2012055338A JP2012055338A JP5569548B2 JP 5569548 B2 JP5569548 B2 JP 5569548B2 JP 2012055338 A JP2012055338 A JP 2012055338A JP 2012055338 A JP2012055338 A JP 2012055338A JP 5569548 B2 JP5569548 B2 JP 5569548B2
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contact
annular
electrical connector
ground
coaxial electrical
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JP2013191341A (en
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純士 大坂
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第一精工株式会社
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/60Means for supporting coupling part when not engaged
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/55Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/7082Coupling device supported only by cooperation with PCB
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00Two poles

Description

  The present invention relates to a coaxial electrical connector and a coaxial electrical connector device in which an annular contact formed to form an annular shape is elastically displaced through a slit when a mating connector is fitted.

  In general, various signal transmission media such as a fine-wire coaxial cable and a flexible wiring board are electrically connected to a printed wiring board using a pair of electrical connectors configured to be fitted and connected to each other in various electric devices. The electrical connection between a pair of wiring boards (board-to-board) is widely performed. As such a pair of electrical connectors, for example, as described in Patent Document 1 below, a plug connector (first connector) to which a signal transmission medium and a wiring board are connected and a wiring board are mounted. A receptacle connector (second connector) is used, and electrical connection is made by fitting a plug connector to the receptacle connector.

  Here, in the electrical connector used for the connection between the above-described pair of wiring boards (board-to-board), a coaxial electrical connector in which a signal contact and a ground contact are arranged concentrically is known. The coaxial electrical connector uses an annular contact in which a slit (broken part) is provided in a part of the circumferential direction, and the mating connector is fitted or removed through the annular opening of the annular contact. The structure is made. At that time, the mating connector is fitted or removed along the axial direction of the annular opening, but at that time, it is elastically displaced so that the gap between the slits (broken parts) of the annular contact is widened. As a result, the outer diameter of the annular contact is expanded, and when the fitting operation or removal operation is completed, the annular contact is restored to the original position, so that the connectors are held in a fitted state or a released state. Is done.

  At this time, the annular contact has a fitting guide function for maintaining the mating connector in an appropriate posture from when the mating connector comes into contact with the annular contact until the mating or removal is completed. . However, in the conventional coaxial type electrical connector, since the slit is provided as a broken portion in the annular contact as described above, the overall rigidity of the annular contact tends to decrease. When the mating connector is fitted or removed in a direction inclined in the axial direction with respect to the annular opening of the contact, there is a possibility that deformation such as twisting of the annular contact may occur. As a result, the fitting guide function of the annular contact with respect to the mating connector is deteriorated, and a smooth fitting or unplugging operation cannot be performed, or the connector may be damaged. In particular, when connecting a board and a board with an electrical connector, the mating connector of the mating connector may be covered with the board and become invisible, so the fitting guide function of the annular contact becomes important. Yes.

JP 2004-063372 A

  Therefore, the present invention provides a coaxial electrical connector and a coaxial electrical connector device that can maintain a good guide function of an annular contact at the time of fitting / removing with a mating connector with a simple configuration. For the purpose.

In order to achieve the above object, the electrical connector according to the present invention has an annular contact formed to form an annular shape, and passes through the annular opening formed in the ground main body portion of the annular contact. with the mating connector is configured to be fitted or removed in the axial direction of the annular opening, the ground main portion of the annular contact, connecting the legs is provided to be soldered to a printed wiring board In the coaxial electrical connector, the ground body portion of the annular contact is formed from an unbreakable annular member that is integrally continuous in a circumferential direction, and the ground body portion includes the annular opening. And a portion between the connecting leg portion and the connecting leg portion are integrally continuous in the circumferential direction, and a portion between the annular opening portion and the connecting leg portion in the ground main body portion. Has a plurality of through holes that disperse the stress generated in the ground main body portion at equal intervals in the circumferential direction, and the annular opening is the inner side in the radial direction of the annular opening or A configuration formed so as to extend in a curved shape toward the outer side is employed.

  According to the coaxial electrical connector having such a configuration, since the entire annular contact has an unbroken integral structure, compared to a conventional annular contact having a fracture portion in the circumferential direction, The rigidity is increased while maintaining the necessary elasticity. For example, even when the mating connector is fitted or removed in a direction inclined in the axial direction with respect to the annular axial direction, the annular contact The conventional twisting deformation is suppressed, and as a result, the mating guide function of the annular contact is maintained well, so that the mating connector is stably guided along the annular axial direction.

  According to the coaxial electrical connector having such a configuration, when the mating connector is fitted and removed, the mating connector smoothly moves along the curved surface provided in the annular opening of the annular contact, The fitting guide function of the annular contact is further improved.

  According to the coaxial type electrical connector having such a configuration, the stress generated in the annular contact when the mating connector is fitted and removed is distributed to the entire annular contact through the through hole. The durability of use is increased.

  The coaxial electrical connector device according to the present invention includes the coaxial electrical connector described above and a printed wiring board on which the coaxial electrical connector is mounted. The annular contact of the coaxial electrical connector is a ground contact. In addition, a signal contact is disposed on the radially inner side of the ground contact, and the printed wiring board includes a ground conductive path to which the ground contact is connected and a signal conductive to which the signal contact is connected. The signal conductive path is formed in the central region in the radial direction of the ground contact.

  According to the coaxial electrical connector device having such a configuration, since the electrical connection of the signal contact is performed at the center portion of the ground contact, positioning related to the connection of the signal contact is unnecessary in the circumferential direction of the ground contact. It becomes. As a result, even when the entire connector rotates around the ground contact axis when mounted on the wiring board, there is almost no displacement of the signal contact, so mounting work can be continued and mounting errors are reduced. Thus, so-called production yield can be improved. In addition, a conventional member that insulates the upper part of the connection leg of the signal contact is not required, so that the connector can be reduced in height and the outer peripheral portion of the signal transmission path including the signal contact is a ground contact. Therefore, the electromagnetic shielding property (EMI characteristic) for the signal transmission path is improved.

  As described above, the coaxial electrical connector and the coaxial electrical connector device according to the present invention are formed by forming an annular contact with an unbroken annular member that is continuous in the circumferential direction and has no fracture portion in the circumferential direction. Compared to a conventional annular contact having a fracture portion in the circumferential direction, rigidity is increased while maintaining necessary elasticity, for example, a mating connector in a direction inclined in the axial direction with respect to the annular axial direction Even when the connector is fitted or removed, the twisting guide in the annular contact is suppressed and the mating connector is stably guided along the axial direction of the annular contact. Since it is configured to maintain its function well, the guide function of the annular contact is well maintained with a simple configuration when mating / unmating with the mating connector. Rukoto can, it is possible to enhance the reliability of the coaxial electrical connector and a coaxial electrical connector device inexpensive and significantly.

It is a plane explanatory view showing the structure of the coaxial type electrical connector concerning one embodiment of the present invention. FIG. 2 is an external perspective explanatory view showing the coaxial electrical connector according to the embodiment of the present invention shown in FIG. 1 from above. FIG. 3 is an external perspective explanatory view showing the coaxial electrical connector according to the embodiment of the present invention shown in FIGS. 1 and 2 from the lower side. FIG. 4 is an external perspective view illustrating a state immediately before the coaxial electrical connector according to the embodiment of the present invention shown in FIGS. 1 to 3 is mounted on a printed wiring board from above. FIG. 5 is an external perspective view illustrating a state immediately before being fitted to the mating connector in the coaxial electrical connector device according to the embodiment of the present invention shown in FIG. 4 from above. FIG. 6 is an external perspective explanatory view showing a fitting completion state after fitting the coaxial type electrical connector device according to one embodiment of the present invention shown in FIGS. 4 and 5 to the mating connector from the upper side. It is longitudinal cross-sectional explanatory drawing along the VII-VII line in FIG. It is longitudinal cross-sectional explanatory drawing along the VIII-VIII line in FIG. It is an external appearance perspective explanatory view showing the signal contact used for the coaxial type electrical connector shown in FIGS. 1-3 from the upper side.

  Hereinafter, embodiments in which the present invention is applied to a coaxial electrical connector and a coaxial electrical connector device for connecting printed wiring boards to each other will be described in detail with reference to the drawings.

[Overall structure]
A coaxial electrical connector device using the coaxial electrical connector 10 according to an embodiment of the present invention shown in FIGS. 1 to 9 is formed on a printed wiring board P disposed in an electronic device such as a mobile phone. It is mounted by soldering, and another coaxial type electrical connector 20 as a mating connector is coaxially arranged on the upper side of the coaxial type electrical connector 10 while being gripped by, for example, an operator's hand ( 5), the coaxial electrical connector 20 is pushed into the lower coaxial electrical connector 10 with an appropriate force, so that the connectors 10 and 20 are fitted together. In addition, the coaxial electrical connector according to one embodiment of the present invention can be obtained by gripping the coaxial electrical connector (mating connector) 20 and pulling it upward with an appropriate force from the fitted state of both the connectors 10 and 20. 10 is removed in such a manner that the coaxial electrical connector 20 on the other side is detached upward.

  The above-described insertion / extraction operation of the coaxial electrical connector (mating connector) 20 is not limited to being performed by the operator's hand, and may be automatically performed by a machine. In the following, the insertion direction and the extraction direction of the coaxial electrical connector 20 are referred to as “downward direction” and “upward direction”, respectively.

[Insulation housing configuration]
The insulating housing 11 constituting the main body of the coaxial electrical connector 10 is, for example, molded using a resin material such as plastic, and is a base frame body placed on the printed wiring board P. 11a and a central frame 11b made of a hollow body projecting upward from the center side portion of the base frame 11a. The central frame 11b is formed so as to form a part of a conical shape whose outer diameter is continuously reduced upward from the upper surface of the base frame 11a, and inward of the central frame 11b. In the side portion, a hollow contact insertion passage 11c having a substantially rectangular plane shape is formed so as to penetrate in the vertical direction. A signal contact 12 for signal transmission, which will be described later, is mounted inside the contact insertion passage 11c so as to be inserted from below.

  Further, a fixed piece 11d (see FIG. 8) is formed on the end face on the outer peripheral side of the base frame 11a so as to protrude outward, and a grounding that forms an annular contact with the fixed piece 11d. The ground contact 13 as a whole is fixed by engaging a later-described through-hole 13 c provided in the ground contact 13. The ground contact 13 as an annular contact is mounted so as to surround the central frame 11b from the outer side in the radial direction. The structure of the ground contact 13 will be described in detail later.

[Configuration of signal contact]
The signal contact 12 is formed from a bent member of a predetermined thin metal plate, and has a connecting leg portion 12a that is soldered to a signal conductive path P1 formed on the printed wiring board P. The signal conductive path P1 at this time is formed so as to be exposed in a circular shape at a substantially central position of a region where the coaxial electrical connector 10 is mounted, as particularly shown in FIG. The connection leg portion 12a of the signal contact 12 is in contact with the circular signal conductive path P1 from above.

  As shown in FIG. 9, the connection leg 12a of the signal contact 12 is formed of a flat plate member extending along the surface of the printed wiring board P, and is directly above the connection leg 12a. At the position, a fitting contact portion 12b formed to have a substantially U-shaped side surface (see FIG. 7) is provided. The fitting contact portion 12b is formed so as to have a longitudinal trapezoidal shape that opens upward, and is bent and extended so as to be inverted upward from one end edge portion of the connection leg portion 12a. Both members 12a and 12b are integrally connected via the curved connecting portion 12c. And the fitting contact part 12b of this signal contact 12 is fitted so that it may cover from the outer side with respect to the fitting contact part 22b of the signal contact 22 provided in the coaxial type electrical connector 20 as a mating connector mentioned later. (See FIGS. 7 and 8).

  At this time, a pair of fixed pieces 12d and 12d are formed on both side edges in the plate width direction of the curved connecting portion 12c described above so as to protrude outward, respectively. The entire signal contact 12 is fixed by engaging a part of the 11 base frame 11a.

  Moreover, although the bottom part of the fitting contact part 12b mentioned above is formed so that the upper position of the connection leg part 12a may extend substantially in parallel, a connection confirmation hole is formed in the bottom part of the fitting contact part 12b. 12e is formed. The connection confirmation hole 12e is formed so as to penetrate the bottom surface portion of the fitting contact portion 12b in the vertical direction, and the end edge portion of the lower connection leg portion 12a passes through a substantially semicircular portion of the connection confirmation hole 12e. In addition to being visible, the upper surface of the lower printed wiring board P is visible through the remaining substantially semicircular portion. Therefore, whether or not the connection leg portion 12a is arranged at a predetermined position with respect to the signal conductive path P1 of the printed wiring board P by visually observing the connection confirmation hole 12e from above is determined by the operator. It is confirmed directly by the eyes.

[Ground contact configuration]
On the other hand, the ground contact 13 which is an annular contact in the present invention is formed by press drawing of a predetermined thin metal plate, and a ground main body portion 13a formed so as to form a substantially cylindrical hollow shape, And a connection leg portion 13b that integrally extends from the outer peripheral lower edge portion of the ground main body portion 13a toward the radially outward side. Among these, the connecting leg portion 13b has a flange plate shape extending so as to have a constant width over the entire circumference, and a plurality (four bodies) of the connecting leg portion 13b formed in an arc shape on the printed wiring board P. It is placed on the ground conductive path P2 and soldered. Since the ground contacts 13 are manufactured by metal press drawing, the pitch between products can be reduced, and the manufacturing cost can be reduced.

  The ground main body 13a is made of a conductive member that is integrally continuous in the circumferential direction, and is formed of a non-breaking annular member that does not have a slit (broken portion) as in the prior art. The ground main body portion 13a is formed to be bent upward at a substantially right angle from the inner peripheral edge portion of the connection leg portion 13b described above, and is formed in an annular opening formed at the upper end portion of the ground main body portion 13a. The coaxial electrical connector 20 as the mating connector is fitted or removed through the part.

  As described above, the ground contact 13 is formed so as to form a continuous annular shape, and a slit (breaking portion) that divides the ground main body portion 13a in the circumferential direction is not formed as in the related art. In the state in which the entire contact 13 is integrated, the elastic displacement is performed in the circumferential direction and the radial direction.

  At this time, the upper edge annular portion 13a1 forming the annular opening of the ground main body portion 13a is formed to extend in a curved shape from the upper end portion of the ground main body portion 13a toward the inner side in the radial direction. Has been. More specifically, the upper edge annular portion 13a1 is formed such that the longitudinal sectional shape in the radial direction forms a substantially arc shape, and extends from the upper end portion of the ground main body portion 13a toward the radially inward side. After extending so as to be curved in a substantially arc shape obliquely upward, a continuous substantially arc-shaped curved shape is formed from the substantially arc-shaped apex portion obliquely downward toward the radially inward side. It is extended.

  The tip portion on the inner side of the upper edge annular portion 13a1 projects so as to form a hook obliquely downward toward the center side of the coaxial electrical connector 10, but the inner edge of the upper edge annular portion 13a1 The distal end portion is formed on an annular locking portion 13a2. An annular engagement portion 23c provided on another coaxial electrical connector 20 as a mating connector described later is elastically engaged with the annular locking portion 13a2 (see FIGS. 7 and 8).

  A plurality of through holes 13c are formed at substantially equal intervals in the circumferential direction in the ground main body portion 13a of the ground contact 13 having the above-described configuration. Each of these through-holes 13c is formed so as to have a long hole shape extending upward from the lower edge portion of the ground main body portion 13a, and the apex portion of the upper edge annular portion 13a1 described above. It extends to the vicinity.

  The other coaxial type electrical connector 20 as a mating connector, which will be described later, is fitted to or removed from the coaxial type electrical connector 10 having such a configuration. A ground main body portion 23a of another coaxial electrical connector (mating connector) 20 abuts on the upper edge annular portion 13a1 of the ground main body portion 13a constituting the ground contact 13 from above, and the coaxial electrical connector 10 The coaxial electrical connector 20 is inserted inward along the curved surface of the upper edge annular portion 13a1. As a result, the inner diameter portion of the ground main body portion 13a is elastically deformed so as to be spread outward, and the ground main body portion 13a is displaced in the direction of expanding in the circumferential direction and the radial direction. Furthermore, when the fitting operation of the other coaxial electrical connector 20 is completed, the ground main body portion 13a is restored in the direction of shrinking in the circumferential direction and the radial direction. In the operation of removing the other coaxial electrical connector 20 from the coaxial electrical connector 10, the elastic displacement described above is performed in the reverse direction.

[Overall configuration of mating connector]
As described above, with respect to the coaxial electrical connector 10 according to the embodiment of the present invention, as shown in FIGS. 7 and 8, the other coaxial electrical connector 20 as the mating connector is located on the upper side. The other coaxial-type electrical connector (mating connector) 20 at that time is also configured in a similar manner, so that the same configuration is used. For members having, the tens place “1” is replaced with “2”, and different configurations will be described below.

  First, an insulating housing 21 provided on another coaxial type electrical connector (mating connector) 20 is formed of a flat plate member having a substantially rectangular plane shape, and a signal transmission signal is provided at the center of the insulating housing 21. A signal contact 22 is attached. A ground contact 23 for grounding is mounted so as to surround the signal contact 22 from the outside.

[Configuration of signal contact]
The signal contact 22 is formed by press drawing of a predetermined thin metal plate, and has a connecting leg portion 22a soldered to a signal conductive path (not shown) formed on the printed wiring board Q. . The connecting leg portion 22a extends to the center side of the insulating housing 21, and a fitting contact portion 22b having a hollow pin shape protruding so as to rise upward in a substantially perpendicular direction at the center portion is integrally connected. Yes. The fitting contact portion 22b is configured to be fitted to the inner side of the fitting contact portion 12b provided in the coaxial electrical connector 10 according to the present invention described above (see FIGS. 7 and 8). .

[Ground contact configuration]
In addition, the ground contact 23 provided on the other coaxial type electrical connector (mating connector) 20 is also formed from a bent member of a predetermined thin metal plate, and is formed so as to form a substantially cylindrical hollow shape. A plurality of connection legs 23b extending integrally from the outer periphery of the main body 23a toward the radially outward side are soldered to a ground conductive path (not shown) formed on the printed wiring board Q. It is like that. An annular engagement portion 23c made of an annular groove is formed on the outer peripheral lower edge portion of the ground main body portion 23a. The annular engaging portion 23c is inserted inward in the radial direction with respect to the annular engaging portion 13a2 of the coaxial electrical connector 10 according to the present invention described above (see FIG. 7). And FIG. 8).

  As shown in FIGS. 7 and 8, the other coaxial electrical connector 20 as the mating connector is viewed from above with respect to the coaxial electrical connector 10 according to the embodiment of the present invention. After being arranged so as to face each other in a state of being inverted downward, the fitting is performed by pushing down. In the fitting operation, the front end edge (lower end edge) of the ground body 23a of the other coaxial electrical connector 20 abuts on the upper edge annular portion 13a1 of the coaxial electrical connector 10, and the upper edge annular portion thereof. The ground main body 23a of the coaxial electrical connector (mating connector) 20 is inserted into the inner side of the coaxial electrical connector 10 by the guiding action of the curved surface of the 13a1. At this time, the coaxial electrical connector 10 The ground main body 13a is elastically deformed in the direction of expanding in the circumferential direction. At this time, the elastic deformation of the ground main body portion 13a is performed under substantially uniform circumferential stress based on the elasticity of the entire ground main body portion 13a, and the fitting to the other coaxial electrical connector 20 is performed.

  In addition, when the fitting operation between the connectors 10 and 20 is completed, the annular shape of the other coaxial electrical connector (mating connector) 20 with respect to the annular locking portion 13 c provided in the coaxial electrical connector 10. The engaging portion 23c is fitted, and the ground main body portion 13a provided in the coaxial electrical connector 10 is restored in the direction of shrinking in the circumferential direction. Note that when the coaxial electrical connector 10 is removed, elastic displacement in the direction opposite to the above-described process is performed.

  As described above, in the present embodiment, when the fitting operation or the extracting operation with another coaxial electrical connector (mating connector) 20 is performed, the ground contact 13 as the annular contact in the coaxial electrical connector 10 is Elastic displacement is performed under the elastic force of the entire ground contact 13. That is, since the ground contact 13 provided in the coaxial electrical connector 10 has an integral structure as a whole, it is compared with a conventional annular contact having slits (broken parts) in the circumferential direction. The rigidity is increased while maintaining the elasticity required for fitting and removal. Therefore, for example, even when another coaxial electrical connector (mating connector) 20 is fitted or removed in a direction inclined with respect to the annular axial direction, in the ground contact 13 of the coaxial electrical connector 10, The conventional twisting deformation is suppressed, and as a result, the fitting guide function of the ground contact 13 is maintained well, and the other coaxial type electrical connector (mating connector) 20 is stable along the annular axial direction. To be guided to.

  In particular, in the present embodiment, the upper edge annular portion 13a1 forming the annular opening of the ground contact 13 extends so as to form a curved surface toward the inner side in the annular radial direction. Therefore, when the other coaxial type electrical connector (mating connector) 20 is fitted and removed, the other coaxial type electrical connector (mating connector) 20 is smooth along the curved surface of the upper edge annular portion 13a1 of the ground contact 13. The fitting guide function of the ground contact 13 is further enhanced.

  Further, since the plurality of through holes 13c are formed in the ground contact 13 in the present embodiment at substantially equal intervals in the circumferential direction, the other coaxial type electrical connector (mating connector) 20 can be fitted and removed. The stress sometimes generated in the ground contact 13 is dispersed throughout the ground contact 13 through the through-hole 13c, and the use durability of the ground contact 13 is improved.

  Furthermore, in this embodiment, since the signal conductive path P1 formed in the printed wiring board P is formed in the central region in the radial direction of the ground contact 13, the electrical connection of the signal contact 12 is connected to the ground. Since it is performed at the center of the contact 13, positioning for connection of the signal contact 12 becomes unnecessary in the circumferential direction of the ground contact 13. As a result, even when the entire connector is rotated around the axis of the ground contact 13 to a certain degree when mounted on the printed wiring board P, the mounting work can be continued because the signal contact 12 is hardly displaced. By reducing mounting errors, so-called production yield can be improved.

  Further, since a member that insulates the upper portion of the connection leg portion of the signal contact as in the prior art is not required, the height of the connector can be reduced, and the outer peripheral side portion of the signal transmission path including the signal contact 12 is Since it is covered with the ground contact 13, the electromagnetic shielding property (EMI characteristic) for the signal transmission path is improved.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiment, the present embodiment is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in the above-described embodiment, the upper edge annular portion 13a1 forming the annular opening of the ground main body portion 13a extends so as to be bent in an inward direction in the annular radial direction. However, a configuration formed so as to extend outward can also be adopted.

  As described above, the present invention can be widely applied to a wide variety of coaxial electrical connectors and coaxial electrical connector devices used in various electronic and electrical devices.

DESCRIPTION OF SYMBOLS 10 Coaxial type electrical connector 11 Insulation housing 11a Base frame 11b Center frame 11c Contact insertion path 11d Fixed piece 12 Signal contact 12a Connection leg part 12b Mating contact part 12c Curved connection part 12d Fixed piece 12e Connection confirmation hole 13 Ground contact ( (Annular contact)
13a Ground body 13a1 Upper edge annular part (annular opening)
13a2 annular locking portion 13b connecting leg portion 13c through hole P printed wiring board P1 signal conducting path P2 ground conducting path 20 coaxial type electrical connector (mating connector)
DESCRIPTION OF SYMBOLS 21 Insulation housing 22 Signal contact 22a Connection leg part 22b Fitting contact part 23 Ground contact 23a Ground main body part 23b Connection leg part 23c Annular engagement part Q Printed wiring board

Claims (2)

  1. It has an annular contact formed so as to form an annular shape, and the mating connector is fitted along the axial direction of the annular opening through the annular opening formed in the ground main body portion of the annular contact. Or configured to be removed ,
    In the coaxial electrical connector provided with a connection leg portion soldered onto the printed wiring board on the ground main body portion of the annular contact,
    The ground body portion of the annular contact is formed from an unbreakable annular member integrally continuous in the circumferential direction ,
    In the ground main body, a portion between the annular opening and the connection leg is integrally continuous in the circumferential direction,
    A plurality of through holes for dispersing stress generated in the ground main body portion are formed at equal intervals in the circumferential direction in a portion between the annular opening portion and the connection leg portion in the ground main body portion, and
    The coaxial electrical connector , wherein the annular opening is formed to extend in a curved shape toward an inner side or an outer side in a radial direction of the annular opening .
  2. The coaxial electrical connector according to claim 1 and a printed wiring board on which the coaxial electrical connector is mounted,
    The annular contact of the coaxial electrical connector is a ground contact, a signal contact is disposed on the radially inner side of the ground contact, and the printed wiring board is connected to a ground to which the ground contact is connected. A conductive path and a signal conductive path to which the signal contact is connected are formed,
    The coaxial electric connector device, wherein the signal conductive path is formed in a central region in a radial direction of the ground contact.
JP2012055338A 2012-03-13 2012-03-13 Coaxial electrical connector and coaxial electrical connector device Active JP5569548B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012055338A JP5569548B2 (en) 2012-03-13 2012-03-13 Coaxial electrical connector and coaxial electrical connector device

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2012055338A JP5569548B2 (en) 2012-03-13 2012-03-13 Coaxial electrical connector and coaxial electrical connector device
TW101150750A TWI496356B (en) 2012-03-13 2012-12-28 Coaxial type electric connector and coaxial type electric connector apparatus
KR1020130003300A KR101422386B1 (en) 2012-03-13 2013-01-11 Coaxial type electric connector and coaxial type electric connector apparatus
CN201310046920.2A CN103311697B (en) 2012-03-13 2013-02-06 Coaxial-type electric connector and coaxial-type electric connector
US13/764,178 US8944827B2 (en) 2012-03-13 2013-02-11 Coaxial electrical connector and coaxial electrical connector device
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CN103311697B (en) 2016-01-20
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EP2639885A1 (en) 2013-09-18
US20130244486A1 (en) 2013-09-19
TWI496356B (en) 2015-08-11
CN103311697A (en) 2013-09-18
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US8944827B2 (en) 2015-02-03
KR20130105315A (en) 2013-09-25

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